He was arrested on suspicion of conspiracy to commit murder, sending threatening messages and sending a hoax noxious substance.

Officers now have until 6.20am on Friday, June 15 to hold and question the man after they were granted a Magistrates Warrant of Further Detention on Wednesday evening.

People in communities across South Yorkshire, West Yorkshire, Leicestershire and London reported receiving hateful letters back in March.

“Punish A Muslim Day” letters are being sent to families in East London. The letter details a point system for each action & a reward. For example pulling a Muslim women’s hijab is 25 points, throwing acid is 50 points and burning or bombing a mosque is a whole 1,000 points. pic.twitter.com/6kmCrDrXt0